//设置导航栏字体及颜色 [self.navigationController.navigationBar setTitleTextAttributes: @{NSFontAttributeName:[UIFont systemFontOfSize:17], NSForegroundColorAttributeName:[UIColor whiteColor]}];
//设置导航栏背景颜色 self.navigationController.navigationBar.barTintColor = NavColor;
原文：http://www.cnblogs.com/ruixin2222/p/5029616.html